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Cheap flights from London Heathrow Airport to Allentown from £567

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ABE
16 Jul — 23 Jul1
1 adult

Cheap flight deals from Heathrow to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Allentown (ABE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 July 2025.

Round-trip from

£567

Popular in

August

Cheapest in

April

Average price

£694
Virgin Atlantic
  • Virgin Atlantic
  • 3/10-6/10
  • 2 total stops
  • 40h 36m total
  • London to Allentown
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (£118 potential increase over avg. return price).
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Cheapest flight prices on average. 10% potential price decrease (£45 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Heathrow to Allentown

Cheapest flights from Heathrow to Allentown
Explore the most affordable flight options available from Heathrow to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Fri 3/1013:05LHR - ABE
1 stop14h 36mVirgin Atlantic
Mon 6/1006:30ABE - LHR
1 stop26h 00mVirgin Atlantic
Deal found 10/7£567
Fri 3/1020:25LHR - ABE
2 stops20h 43mDelta
Mon 6/1013:00ABE - LHR
1 stop13h 15mDelta
Deal found 10/7£582
Sun 24/820:55LHR - ABE
2 stops49h 39mKLM
Sun 31/806:00ABE - LHR
2 stops20h 15mKLM
Deal found 10/7£751
Sun 24/811:00LHR - ABE
1 stop16h 37mAmerican Airlines
Sun 31/813:56ABE - LHR
1 stop12h 44mAmerican Airlines
Deal found 10/7£801
Sun 24/808:30LHR - ABE
1 stop13h 23mUnited Airlines
Sun 31/813:00ABE - LHR
1 stop14h 20mUnited Airlines
Deal found 10/7£896
Wed 3/906:30LHR - ABE
2 stops20h 24mMultiple Airlines
Mon 8/917:28ABE - LHR
1 stop13h 17mMultiple Airlines
Deal found 9/7£1,422
Fri 8/814:10LHR - ABE
2 stops27h 05mWestJet
Fri 22/812:56ABE - LHR
2 stops42h 09mWestJet
Deal found 9/7£5,215

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Allentown that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Allentown that are best for you.

Fly from

Heathrow

Fly to

Allentown

Route

Depart

Return

Price

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

13:05-22:41

1 stop14h 36m

Allentown-Bethlehem

Mon 6/10

06:30-13:30

1 stop26h 00m

£567

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 3/10

20:25-12:08

2 stops20h 43m

Allentown-Bethlehem

Mon 6/10

13:00-07:15

1 stop13h 15m

£582

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 24/8

20:55-17:34

2 stops49h 39m

Allentown-Bethlehem

Sun 31/8

06:00-07:15

2 stops20h 15m

£751

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 24/8

11:00-22:37

1 stop16h 37m

Allentown-Bethlehem

Sun 31/8

13:56-07:40

1 stop12h 44m

£801

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Sun 24/8

08:30-16:53

1 stop13h 23m

Allentown-Bethlehem

Sun 31/8

13:00-08:20

1 stop14h 20m

£896

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 3/9

06:30-21:54

2 stops20h 24m

Allentown-Bethlehem

Mon 8/9

17:28-11:45

1 stop13h 17m

£1,422

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Fri 8/8

14:10-12:15

2 stops27h 05m

Allentown-Bethlehem

Fri 22/8

12:56-12:05

2 stops42h 09m

£5,215

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Wed 23/7

15:50-12:11

3 stops49h 21m

£768

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Mon 1/9

09:20-17:34

1 stop13h 14m

£1,210

LondonAllentown

LHR - ABE

LHRABE

London Heathrow

Tue 19/8

08:55-21:44

2 stops17h 49m

£2,091

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 11 results
1
2

Best time to book a flight from Heathrow to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated 11 July 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Allentown, such as Delta, KLM, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,846 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Food

7.3

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Allentown from London Heathrow?

    Most people fly into Allentown-Bethlehem (ABE) if they book a flight to Allentown from London Heathrow. On average, Allentown-Bethlehem has 0 inbound flights from London Heathrow per day from 1 airline. Allentown-Bethlehem is conveniently located just 3.9 mi from Allentown’s city center.

  • What are the cheapest airlines flying from London Heathrow Airport to Allentown round-trip?

    According to our current data, Virgin Atlantic (£567), Delta (£582), and KLM (£751) offers the cheapest pricing from London Heathrow Airport to Allentown.

  • What are the cheapest airlines to fly from London Heathrow Airport to Allentown one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as £1,210. Users have also found prices from £2,091 and £2,307 on American Airlines and United Airlines, respectively.

  • Can I find deals for flights from Heathrow to Allentown that include hotel bookings?

    Yes. In addition to deals on Heathrow to Allentown flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Allentown.

  • Can I find deals for business class flights from Heathrow to Allentown?

    Yes. Cheapflights offers flight deals from Heathrow to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Heathrow to Allentown

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Heathrow to Allentown

Discover the top airline that operate flights from Heathrow to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£455Average£559FlexibilityNo cancel feeOn-time76%
Search Finnair flights

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Can Cheapflights find flights from Heathrow to Allentown with no change fees?

Need flexible booking options for your flight to Allentown from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Allentown become cheaper?

Yes! Start tracking prices for Heathrow to Allentown flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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